I've been changing cosmetic factors in my custom race's file for awhile, but I find that a few of these settings either do not get implemented, or are reset.
For one, the Short Empire Name. I've given my custom a full name (The Alteran Alliance), and I've gone into the file every now and then to try to change the ShortEmpireName to just Alteran... and I'm getting mildly annoyed at how the game completely ignores this and overwrites the ShortEmpireName as Alteran Alliance.
This is a minor annoyance, as I said, but it gets on my nerves when all the other races get called their actual race name in some instances, while mine gets called its full governmental name.
I also bothered to give a separate Homestar name from the Homeworld. The Homeworld is Altera, but I decided to call the star 'Helios'. This never gets changed, but it also never gets implemented in-game.
As well, I tend to have a set of names for my starting system planets. These include Kheb (for the intended secondary colony and future home of the Temple of Righteousness), Dakara (for the largest), Gygaeus (for the ringed one), and Velas (for the tiny uninhabitable one).
It'd be nice if I didn't have to set these all every game.
I'd ask if my race could build and deploy a network of wormhole devices, and then make their own cylindrical-ish ships that can easily go through the small 'Astria Porta', but that'd just be silly...